/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Drawing/MeshWireframeComponent.h
vertex indices and type for a given edge index
void GetEdge ( int32 Index, int32 & VertexAOut, int32 & VertexBOut, [EMeshEdgeType](API\Plugins\ModelingComponents\Drawing\IMeshWireframeSource\EMeshEdgeType) & TypeOut ) const